Lg Chem, Ltd

Electronics and Telecommunications Research Institute

Korea Atomic Energy Research Institute

Korea Advanced Institute of Science and Technology

Tae-Wan Kim

Sang-Yup Lee

Taek-Ho Yang

Si-Jae Park

Hye-Ok Kang

Sang-Hyun Lee

Eun-Jeong Lee

Suhn Choi

Won Il Chang

Sung-Kwon Choi

Young-Kil Kim

Jong-Wook Kim

Dong-In Park

Sang-Hwa Yuh

Young-Soog Chae

Han-Min Jung

Jae-Seon Lee

Keung-Koo Kim

Jong In Kim

Chul-Min Sim

Disclosed is a control rod drive mechanism. More specifically, the control rod drive mechanism includes a guide memberdisposed in a nuclear reactor to receiving a drive shaft; a latch assemblydisposed in the guide memberto enable the drive shaftto be withdrawn and inserted; a supporting memberconnected to the guide memberto cover the drive shaftand to support the latch assembly; and a plurality of coil housingsspaced apart and connected to the guide memberto cover the latch assembly, and each having a coilbuilt therein.

Control rod drive mechanism built in nuclear reactor

The present invention relates to a copolymer comprising 3-hydroxyalkanoate monomer unit and lactate monomer unit, or their preparing method. More specifically, the present invention relates to a method for preparing a copolymer comprising lactate monomer and 3-hydroxyalkanoate monomer, wherein the method comprises culturing a cell or plant comprising the gene of enzyme converting lactate and 3-hydroxyalkanoate into lactyl-CoA and 3-hydroxyalkanoyl-CoA, respectively, and polyhydroxyalkanoate synthase gene together, and the copolymer made by the method. The copolymer of the present invention is a biodegradable polymer being able to be usefully used instead of conventional synthetic plastic, and the copolymer can be used also for medical use.

Copolymer containing 3-hydroxyalkanoate unit and lactate unit, and its manufacturing method

The present invention relates to polyhydroxyalkanoate synthase (PHA synthase) mutant originated fromsp. 6-19 (KCTC 11027BP) which can prepare lactate polymer and/or copolymer by using lactyl-CoA as a substrate. The present invention relates to a method for preparing lactate polymer and/or copolymer with the synthase mutant. The polyhydroxyalkanoate synthase mutants of the present invention originated fromsp. 6-19 can efficiently prepare lactate polymer and/or copolymer by using as a substrate lactyl-CoA which is difficult to be used as a substrate by conventional polyhydroxyalkanoate synthase.

[object Object]

Provided are a microorganism capable of producing a polylactate (PLA) or PLA copolymer from sucrose and a method of producing the PLA or PLA copolymer from sucrose using the same. A gene of an enzyme converting lactate into lactyl-CoA and a gene of a polyhydroxyalkanoate (PHA) synthase using lactyl-CoA as a substrate are introduced into a microorganism capable of using sucrose as a substrate, and the microorganism is cultured using sucrose as the substrate, thereby allowing efficient production of a PLA or PLA copolymer.

Recombinant microorganism capable of producing polylactate or polylactate copolymer from sucrose and method for producing polylactate or polylactate  copolymer from sucrose using the same

The present invention relates to a copolymer comprising 4-hydroxybutyrate monomer unit and lactate monomer unit, a copolymer 4-hydroxybutyrate monomer unit, lactate monomer unit and 3-hydroxyalkanoate, or their preparing method. More specifically, the present invention relates to a method for preparing a copolymer comprising lactate monomer; 4-hydroxybutyrate monomer; and optionally 3-hydroxyalkanoate, wherein the method comprises culturing a cell or plant comprising the gene of enzyme converting lactate and 3-hydroxyalkanoate into lactyl-CoA and 3-hydroxyalkanoyl-CoA, respectively, phosphotransbutylase gene, butyrate kinase gene and polyhydroxyalkanoate synthase gene together, and the copolymer made by the method. The copolymer of the present invention is a biodegradable polymer being able to be usefully used instead of conventional synthetic plastic, and the copolymer can be used for medical use.

Copolymer comprising 4-hydroxybutyrate unit and lactate unit and its manufacturing method

A query transformation system and method capable of not only solving an ambiguousness of words involved in the transformation of queries from one language to another language, but also executing its processing independently of the processing of an information retrieval system used, so that it can be applied to a variety of information retrieval systems, thereby enabling the information retrieval system used to function as a multilingual information retrieval system. The system includes a translation generator for generating all possible translations of an input query consisting of a source language by reference to a translation dictionary, a semantic category verifier for receiving the generated translations from the translation generator, and eliminating translations having a low semantic similarity from the received translations, based on a semantic category tree, and a collocation information verifier for receiving the translations, which includes no translation having a low semantic similarity, from the semantic category verifier, and eliminating translations having no collocation from the received translations, based on word collocation information.

Query transformation system and method enabling retrieval of

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Daejeon, South Korea

Tae-Wan Kim